Automatic shutter for kinetoscopes.



l. .ENGELBRE!T.

AUTOMATIC SHUTTER FOR KINETOSCOPES.

APPLICATION FILCS FFE,

Tzaten May 4, T91El 2 SHEETS-SHEETT Y Jpn. 'ENGELBREFL AUTOMATIC SHUTER FOR KINETOSCOFES. 'PPLICATION FILED FEB. I7-, 1913.

i l f@ Patented May 4f, 1915.

2 SHEETS-SHEET 2.

'MMWI f;

JOHN-D. ENGELBREIT, 0F CHICAGO, ILINQIS, ASSGNOR TO THE ENTERPRISE OFTIAL u MFG. CMPANY, Ol? GHICGG, ILLINS, A CORPORATION 0F ILLINOIS.

UTOMATC SHUTTER FR KINETOSCOPES.

1,1 3&364.

Specification of Letters Patent.

Patented May 4t, i915.

, Application filed February 17, 1913.' Serial No. 71t8,826.

y Cook, State of Illinois, have invented certain new and useful improvements in Automatic Shutters for Kinetoscopes, of which the ollowing is a specification.

This invention relates to an automatically operating auxiliary fire shutter for protecting the film of a kinetoscope from the heat.

rays proceeding from the lamp house, when the film is at rest and the film guiding gate is in an opened position. And the present iniprovementrhas for its object to provide a, simple and efficient structural 'foiination'and arrangement of parts in which an oscillatory fire shutter is operatively asseciated'with the hir ed film guiding gate of the kinetoscope, so that when said gate is open the fire shutter will be in an active position to intercept the heat rays from the lainn house, and when said film gate is 'Gi-Med.y ...aid shutter will automatically assume a dormant position to permit an unobstructed passage of the light rays from the lamp house, all as will hereinafter more fully appear.

ln the accompanying drawings: Figure 1, is a. rear elevation of a kinetoscope having the present imprcwement applied., parts being broken away, and a closed position ot the film gate being shown in. full lines and an open position in dotted lines, with the corresponding dormant position of' the fire shutter in full lines and the active position in dotted lines. Fig. 2, is a side elevation, showingr said film gate in an open position and the fire shutter in its active heat ray 'intercel'iting position.

ed to provide an intermediate space between the disks and open on all edges through which air can freely circulate to keep the parts in a comparatively cool condition.

5 is a carrying arm attached at one end to an edge of the shutter 3, and having at its other end a journal sleeve 6, which by en-4 gagement with-a fixed horizontal. shaft 7 on the kinetoscope frame 1 is adapted to aitord the required pivotal support for the shutter 3, aforesaid. In the present construction the journal sleeve 6, and horizontal bearing shaft 7, are of such length as to locate the shutter 3 at a point sufiiciently to the rear of the film'gate 2, so that said gate free to open without hindrance from said shutter, as illustrated in Fig. 2.

8 is a socket member oi the universal type, attached to the film gate i2, near its lower ond, and )A is a companion socket member of the universal type and disposed on the free end of' an arm or lever l0. attached tothe forward end of the journal sleeve 6, above described.

11, is an intermediate connecting link. the ends of which are preferably of the globe torni shown, and adapted for engagement `with the respective socket members 8 and 9,

to provide the required universal movements of the ends of said link 1n the practical use of the present mechanism, and due to the different planes in which the film gate and the fire shutter have their movements.

Having thus fully described my said in# vention what I claim as new and. desire to secure by Letters Patent, is z- 1. ln a safety shutter mechanism, `the coinbination ot' a film gate, an oscillatory shutter -journaled a distance to the rear of said/ gate,

and operative connections between said gate and shutter for effecting simultaneous ni0ve,

ments of the same, substantially as set forth.

2. l'n-a safety shutter mechanism, the cornbination of a filingate, an oscillatory shutter journaled a distance to the rear of said gate, andoperative connections betweensaid gate and shutter for efecting simultaneous movements thereof, the same comprising an intermediate member having universal connections with the aforesaid shutter and gate, substantially as set forth.

3. ln a safety shutter n1eclianisni,the coinbinaton ofa film gate, an oscillatory shutter journalcd a distance to the rear of said gate,

said gate und shuitffr for @Heating 5.-mu-mu-ous Huwements thereof, the same smnprising un'iref sul socket members connecc'ed s i@ @ai and shutter und an in ghrbunlnrfe substfmalj, 

